Fly a sign: Before writing this article, some words, I want to say advanced area, the time that car of new energy resources uses in the market is opposite for shorter, a lot of problems were not solved, come besides colourful besides, still have tesla, Biyadi, Chang'an, the car of new energy resources below these company divisions has appeared spontaneous combustion. Never mention it car of new energy resources, it is the happening that fuel car also has spontaneous combustion case. Just be to be more on blast tuyere, make the central point that is said more easily.
From the point of whole industry, what colourful will had been done really is very pretty good. 2018, according to media public data shows, colourful comes ES8 consign many 10 thousand. On April 2, wei Laiguan just releases data, 2019 consign of the 1st quarter 3989, capacity of delivery of ES8 accumulative total achieves 15337. This number, be worth us to nod assist really.
Regard burgeoning car as the enterprise, high end of this fixed position is homebred and dynamoelectric the price of the car, be born price about 580 thousand the left and right sides. There also was a friend to buy this car beside me, and spend to the faithfulness of this car special tall. What must say is, colourful will how becoming good service client, made great efforts, very take a heart.
But, what this still cannot make up for product itself is short board, also be a problem that colourful will come to must want to face. I often think so, appear small issue is meddlesome probably, can hurry to solve little problem so, lest lead to bigger, irretrievable mistake.
Incident answers put:
Late on May 16, another colourful of Shanghai comes incident of ES8 happening spontaneous combustion. Since a month, this is colourful will the 2nd times appear spontaneous combustion accident. On April 22, xi'an colourful comes accredit service center is coming in the colourful in maintenance ES8 produced spontaneous combustion event.
Accident reason shallow analyse:
Apparent, we can see the reason of the accident is not same twice. Shanghai incident, on May 17, shenyang Fei dispatch weighs vice president of Wei Laineng cause, accident car leaves place 4 days in the condition that insert a gun, the system after filling report for many times automatic answer fill make batteries holds full report position for a long time. Be in in view of dynamical cell long the invalidation probability below tall n condition can increase, stem from safe and careful principle, before formal findings emerges, of meshy to be in couplet condition exclusive picket and car, will adopt measure to will fill n to restrict temporarily in 90% . Charge to be not what couplet network position falls, perhaps using tripartite to charge when picket, except be necessary truly, suggest everybody presses 90% n to undertake charging below in be used daily.
Xi'an incident: On May 1, after passing probe, wei Laiguan just announces findings of Xi'an ES8 spontaneous combustion, department car batholith bumps be caused by of batteries short circuit. Colourful will express " this car is sending the batholith before repairing to once had been sufferred bump badly, bring about dynamical cell to wrap opposite hind case and dead plate large area to be out of shape. Short circuit is formed after batteries wraps internal composition to pass period of time below the condition that is squashed, cause igneous feeling finally " , because colourful will did not detect chassis, reason did not discover this circumstance.
Crisis public relations:
Not only such, colourful comes CEO Li Bin also leaves a message below, "Acknowledgment passes detailed cent to enjoy to incident, apologize makes you and your gentleman sad. Apologize makes you and your gentleman sad..
But the word says, no matter public relations it may not be a bad idea, service client it may not be a bad idea, most of core is to make quality have assuring product. The client's safety is forever the first.
The biggest difficult problem of quality of product of car of new energy resources -- batteries
Actually, the most of product quality problem of car of new energy resources results from batteries, 100 people can carry out electric car of academician of the Chinese Academy of Sciences, China vice-president Ou Yangming ever was sending call the turn high to point out, on fire of car of domestic new energy resources basically has so a few features:
The first, it is 3 yuan of batteries are given priority to, lithium of phosphoric acid iron also has, basically be 3 yuan of batteries, exceed an in part.
The 2nd, cylindrical batteries is given priority to, this is among them a mainer type, because it is steel casing, the comparison that coil is close, once happen,heat up out of control so, it can explode, meet later ignition is other batteries. (what tesla uses is cylindrical batteries)
The 3rd, charge the accident of be on fire is occupied bigger than comparing. Generally speaking if batteries discharges out of control won't be heated up after certain deepness, hot out of control is commonly in full report state, cause easily when charge so, because charge when, batteries and charge the system is together repeatedly, it is hot when out of control is the easiest, the short circuit that still has high-pressured electric equipment at the same time is waited a moment, can cause an accident easily.
Name of a learning was mentioned here " hot out of control " , what is hot out of control cause? Be batteries overheat above all, a moment ago said, batteries heated up ability to be able to heat up out of control, the reason of overheat has various, it is batteries likely bag itself temperature is inhomogenous, have local district temperature tall, had filled too put, outside short circuit, inside the reason that short circuit waits these report a moment will be radiative, still have mechanical reason, wait a moment into sealed and water, bad, collision for example.
Not only such, the ageing of batteries also can be caused " hot out of control " , the abhorrent sex after batteries ageing can expand, this is the adds abhorrent sex to be able to become bigger and bigger account of batteries circulation time, and become poor as size consistency, the accuracy of batteries management is very poor also. Additional, the ageing below microtherm environment can affect the thermal stability of batteries badly, the autogenous hot temperature of out of control of hair heat build-up can be reduced, this brings about hot out of control more easily.
How is batteries problem solved?
Ou Yangming tall academician points out, short-term the lithium ion batteries that is liquid state electrolyte, will develop to direction of solid state batteries next. Namely short-term it is liquid state electrolyte, develop tall nickel 3 yuan of anode and silicon charcoal negative pole, the inhibition that through batteries management system and heat spread will prevent safe accident to happen, this kind of batteries can satisfy electric car 500 kilometers add sails the requirement of course of development. In long-term, transfer stage by stage from liquid state electrolyte batteries of whole solid state, estimation will receive industrialization application in batteries of whole 2030 solid state.
Encounter new energy resources electric car caught fire, how should we do?
One, the brand that the car informs when calling the police and model
Once car of new energy resources catchs fire, the brand of on fire car and model must be informed when call the police, let a rescuer can know the dynamical cell sort of this car and size quickly, and trend of circuitry of car highest voltage, high pressure. Of course, if car advocate trend of highest voltage of position of the dynamical cell sort that understands oneself car, capacity, installation, system, high tension line is waited a moment, and inform firemen for a short while, will improve rescuing efficiency greatly.
2, adopt instantly after on fire cut off the power measure
If igneous situation just rose, below the circumstance that can cut off the power, must cut off the power immediately, load car key signal screen bag even, set bag space vehicle 10 meters of places beyond. The expert says, if there is a person in the car of on fire, firemen must pull open the distance of put out a fire, this distance should be besides the 10-15 rice of on fire car. Additional, the rescuer is forbidden use broken tear open a tool blind penetrable shield or puncture, cut, lever, any structures that dismantle discharge car, prevent to create high-pressured system and outside isolation be no longer in force, produce electrical shock risk. Deal with in the process, all personnel must implement individual safety preventive measure strictly, take strict precautions against get an electric shock, the harm such as batteries electrolyte splash, explosion. Face an ablaze electric car, there must be this string in rescuer brain, that assumes namely, component of all high pressure is in electrify condition, cut, crunch perhaps contacts high-pressured component to be able to cause serious harm or death.
3, the attention after on fire prevents high temperature, mephitis
Electric car on fire defends besides tall voltage, still get the high temperature after noticing on fire. Temperature of the combustion after the benzine on fire of car of common family expenses also has 500 Celsius only probably, but dynamical cell on fire, temperature can achieve 1000 Celsius, and dynamical cell burns hind, can produce a large number of toxic gas, if fluorine changes hydrogen, cyaniding hydrogen,wait.
4, after dynamical cell catchs fire, should put out with more water
In memory of a lot of people, circuit on fire cannot use water, but dynamical cell is an exception, put out a fire is not need not water, want to use more water however!
The lash-up of tesla saves aid manual to say so, if encounter small fire, blaze also did not spread to batteries storehouse, can use carbon dioxide or ABC powder fire extinguisher. Igneous situation one big, use more water with respect to need, can happen in fire because of dynamical cell bend, be out of shape, attaint, if water quantity is too little, toxic gas is met many and oozy, also get the case of leakage of electricity that notices the spot may be caused right now, want to be far from automobile body as far as possible so.
5, state of close observation batteries
There is a characteristic after batteries on fire, that is very difficult be put out. The batteries of car of new energy resources, often be lithium battery, rescuing manual of lash-up of car of very much new energy resources can tell you, batteries catchs fire to need ability possibly 24 hours to be put out completely, fume states batteries interior still is in high temperature condition and extremely easy resurgence, must observe batteries condition closely so.
Read an article? Not beat one's brains, knew trashy also
Leave a message rapidly use put on one's thinking cap, remember nodding assist!
- END-
